کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4597423 1336216 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Degree functions and projectively full ideals in 2-dimensional rational singularities that can be desingularized by blowing up the unique maximal ideal
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
Degree functions and projectively full ideals in 2-dimensional rational singularities that can be desingularized by blowing up the unique maximal ideal
چکیده انگلیسی

Let (R,m)(R,m) be a 2-dimensional rational singularity with algebraically closed residue field and for which the associated graded ring is an integrally closed domain. According to Göhner, (R,m)(R,m) satisfies condition (N)(N): given a prime divisor vv, there exists a unique complete mm-primary ideal AvAv in RR with T(Av)={v}T(Av)={v} and such that any complete mm-primary ideal with unique Rees valuation vv, is a power of AvAv. We use the theory of degree functions developed by Rees and Sharp as well as some results about regular local rings, to investigate the degree coefficients d(Av,v)d(Av,v). As an immediate corollary, we find that for a simple complete m1m1-primary ideal I1I1 in an immediate quadratic transform (R1,m1)(R1,m1) of (R,m)(R,m); the inverse transform of I1I1 in RR is projectively full.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pure and Applied Algebra - Volume 214, Issue 5, May 2010, Pages 512–518
نویسندگان
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